for life on mars, chemists, physicists, electrical engineer, mechanical engineers, all the traditional s.t.e.m. fields, the science, technology, engineering, and math field are stoked when you dream big in an agency such as nasa. and it's not that much money. right now it's a half a penny on your tax dollar. i say double it. to a penny, right? then we go to mars in a big way. in short term it becomes a big, visible project. school kids know about it. who is the first astronaut, class? today, they're -- in middle school today. i got an idea, select them now, and then we all could track, see how -- are they eating well, getting good grades? tomorrow's "mercury 7." >> what is your hope about the mars mission? this is -- clearly part of it is symbolic. but part of it is you actually think there's a lot to learn by -- >> as a scientist, i want to go to mars and back to asteroids and the moon because i'm a scientist. but i can tell you, i'm not so naive a scientist to think that the nation might not have geopolitical reasons for going into space.